While valvuloplasty is less risky than open-heart surgery, when aortic valves are opened using this approach, they almost always renarrow within six months to two years. There’s also a small chance that the balloon won’t improve the opening of the valve, and you may still need surgery to replace the valve. Techniques to make valvuloplasty more effective continue to be developed. Other risks from a valvuloplasty include the following:

  • Stroke
  • Heart attack
  • Irregular heart rhythm
  • Allergic reaction or kidney problems from the dye used in the procedure

Your doctor can help you weigh the benefits and risks of valvuloplasty as well as other treatment options to see what’s the best option for you.